12182056956 has 18 divisors (see below), whose sum is σ = 30793532952. Its totient is φ = 4060685640.

The previous prime is 12182056921. The next prime is 12182057023. The reversal of 12182056956 is 65965028121.

12182056956 is a `hidden beast` number, since 1 + 2 + 1 + 82 + 0 + 569 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 169195200 + ... + 169195271.

Almost surely, 2^12182056956 is an apocalyptic number.

It is an amenable number.

12182056956 is an abundant number, since it is smaller than the sum of its proper divisors (18611475996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12182056956 is a wasteful number, since it uses less digits than its factorization.

12182056956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338390481 (or 338390476 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 12182056956 in words is "twelve billion, one hundred eighty-two million, fifty-six thousand, nine hundred fifty-six".